Gleam's realm is flourishing.
It's a bit difficult to say how much of this is her. She carved this territory out of the edge of Creation many centuries ago, wavering along the border of the wyld. A place she could hide from the world. From those who would pursue her, chain her - dark and tangled and protective.
It turns out, a realm created to hide one escaped slave can hide more, and in those early days - it'd been more than freeing to learn how to walk the border marches, how to let the currents of story carry her across the world. Stealing slaves from the Blessed Isle is often beyond her - but she can strike fairly deeply from the edges, and she can adjust herself to the amorphous networks of abolitionists and freedom trails. (The center of Creation is more stable, anyways, the system of slavery set up with a path to citizenship, just enough rights, just enough hope to quell rebellions and discourage escape. Gleam used to burn at it, at that trap - but anger is a toxin in her mind, she's been learning, and cold triage just works so much better.)
(No one tends to miss a system that was already brutal and destructive, anyways.)
Her realm's borders have grown over the years, her personal power swelling with the population - a people who see no reason not to worship her, the feral silver tiger in the forest, guardian and companion and inspiration. It's flattering, often convenient - she can speak to her people in their dreams, which is nice for keeping an eye on things even from afar, and is very useful for finding people to worship her body as well as her power.
She doesn't rule the patchwork of states that call her region home. The leaders pray to her, seek her guidance - but she's often blunt about telling them to fix their own problems. They've found a wonderful array of solutions, and the only things she enforces are freedom and peace between the states. (Some of those solutions are difficult for her to wrap her mind around anyone ever wanting, but it's... Nice, to see her people happy. To see their children flourish.)
Much of Creation, for all of the vaunted rule of the Lawgivers, is still a shifting sea of non-state peoples. Gleam accepts those into her realm, too, many of them as itinerant residents, and the soft ripple of 'uncivilized wilderness' usually creates a nice buffer between her and other Exalts.
That's been changing, over the last century. Some of that was her fault - she doesn't like imperialism, and the peoples in the regions around her know who she is. When nearby states got delusions of easy new land for their empires - well, it'd been a little bit since she surged the space under her protection. Her peoples aren't really prepared for war, but she is, and she can handle any posturing here.
(She wins. None of the states on her new border have the full, dedicated protection of a Celestial Exalt, even if they're usually being egged on by the Dragonblooded servants of one. Gleam still remembers how "this is my fucking territory" diplomacy works, though, and most Solars - even many of the other Exalts - are under the impression that all Exalts are natural allies, mortal kingdoms at best set dressing for their tea parties.)
The kingdoms on her border shift and ripple, and her territory expands at a meandering pace, punctuated only rarely by surges - but she's getting close, she thinks, to a kingdom influenced but not ruled by a less baby Solar than the ones she's usually threatening off. Not an aggressive place, at least, instead a quite nicely stable state she's loosely aware many of her peoples trade with at some remove. Apparently they have multiple universities, and some of her more curious states are thinking of setting up enough diplomatic ties to trade knowledge and teaching.
(Gleam is curious, too. Most Exalts seem to forget the point of their appointment as stewards of the world is actual responsible management, not exploiting every resource and then emptying the treasury and taking off when the whole place collapses. (Maybe that's a tiny bit uncharitable, but, also, she's been to a lot of the corners of Creation. Older Solars especially seem a bit baffled by the idea of mortal flourishing as a goal separate from 'get to show off the shiniest elite culture to other Solars.'))
So, one spring, she sets out from her realm at a gentle pace, angling towards the foreign kingdom. She'll announce herself if she senses an actual claimed territory, but, otherwise, she's just poking around. Might meander over to directly and intentionally poke the Solar, but, eh, she'll see where her whim takes her.